Utf.hpp

//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2018 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
//    you must not claim that you wrote the original software.
//    If you use this software in a product, an acknowledgment
//    in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//

#ifndef SFML_UTF_HPP
#define SFML_UTF_HPP

// Headers
#include <SFML/Config.hpp>
#include <algorithm>
#include <locale>
#include <string>
#include <cstdlib>


namespace sf
{
template <unsigned int N>
class Utf;

template <>
class Utf<8>
{
public:

    template <typename In>
    static In decode(In begin, In end, Uint32& output, Uint32 replacement = 0);

    template <typename Out>
    static Out encode(Uint32 input, Out output, Uint8 replacement = 0);

    template <typename In>
    static In next(In begin, In end);

    template <typename In>
    static std::size_t count(In begin, In end);

    template <typename In, typename Out>
    static Out fromAnsi(In begin, In end, Out output, const std::locale& locale = std::locale());

    template <typename In, typename Out>
    static Out fromWide(In begin, In end, Out output);

    template <typename In, typename Out>
    static Out fromLatin1(In begin, In end, Out output);

    template <typename In, typename Out>
    static Out toAnsi(In begin, In end, Out output, char replacement = 0, const std::locale& locale = std::locale());

    template <typename In, typename Out>
    static Out toWide(In begin, In end, Out output, wchar_t replacement = 0);

    template <typename In, typename Out>
    static Out toLatin1(In begin, In end, Out output, char replacement = 0);

    template <typename In, typename Out>
    static Out toUtf8(In begin, In end, Out output);

    template <typename In, typename Out>
    static Out toUtf16(In begin, In end, Out output);

    template <typename In, typename Out>
    static Out toUtf32(In begin, In end, Out output);
};

template <>
class Utf<16>
{
public:

    template <typename In>
    static In decode(In begin, In end, Uint32& output, Uint32 replacement = 0);

    template <typename Out>
    static Out encode(Uint32 input, Out output, Uint16 replacement = 0);

    template <typename In>
    static In next(In begin, In end);

    template <typename In>
    static std::size_t count(In begin, In end);

    template <typename In, typename Out>
    static Out fromAnsi(In begin, In end, Out output, const std::locale& locale = std::locale());

    template <typename In, typename Out>
    static Out fromWide(In begin, In end, Out output);

    template <typename In, typename Out>
    static Out fromLatin1(In begin, In end, Out output);

    template <typename In, typename Out>
    static Out toAnsi(In begin, In end, Out output, char replacement = 0, const std::locale& locale = std::locale());

    template <typename In, typename Out>
    static Out toWide(In begin, In end, Out output, wchar_t replacement = 0);

    template <typename In, typename Out>
    static Out toLatin1(In begin, In end, Out output, char replacement = 0);

    template <typename In, typename Out>
    static Out toUtf8(In begin, In end, Out output);

    template <typename In, typename Out>
    static Out toUtf16(In begin, In end, Out output);

    template <typename In, typename Out>
    static Out toUtf32(In begin, In end, Out output);
};

template <>
class Utf<32>
{
public:

    template <typename In>
    static In decode(In begin, In end, Uint32& output, Uint32 replacement = 0);

    template <typename Out>
    static Out encode(Uint32 input, Out output, Uint32 replacement = 0);

    template <typename In>
    static In next(In begin, In end);

    template <typename In>
    static std::size_t count(In begin, In end);

    template <typename In, typename Out>
    static Out fromAnsi(In begin, In end, Out output, const std::locale& locale = std::locale());

    template <typename In, typename Out>
    static Out fromWide(In begin, In end, Out output);

    template <typename In, typename Out>
    static Out fromLatin1(In begin, In end, Out output);

    template <typename In, typename Out>
    static Out toAnsi(In begin, In end, Out output, char replacement = 0, const std::locale& locale = std::locale());

    template <typename In, typename Out>
    static Out toWide(In begin, In end, Out output, wchar_t replacement = 0);

    template <typename In, typename Out>
    static Out toLatin1(In begin, In end, Out output, char replacement = 0);

    template <typename In, typename Out>
    static Out toUtf8(In begin, In end, Out output);

    template <typename In, typename Out>
    static Out toUtf16(In begin, In end, Out output);

    template <typename In, typename Out>
    static Out toUtf32(In begin, In end, Out output);

    template <typename In>
    static Uint32 decodeAnsi(In input, const std::locale& locale = std::locale());

    template <typename In>
    static Uint32 decodeWide(In input);

    template <typename Out>
    static Out encodeAnsi(Uint32 codepoint, Out output, char replacement = 0, const std::locale& locale = std::locale());

    template <typename Out>
    static Out encodeWide(Uint32 codepoint, Out output, wchar_t replacement = 0);
};

#include <SFML/System/Utf.inl>

// Make typedefs to get rid of the template syntax
typedef Utf<8>  Utf8;
typedef Utf<16> Utf16;
typedef Utf<32> Utf32;

} // namespace sf


#endif // SFML_UTF_HPP